Sash-weight support



Nov. 22, 1927.

C. L. SCHNEIDER SASH WEIGHT SUPPORT Filed June l5l 1925 Patented Nov.212,` 1927.

UNITED" srArEs l 1,649,861 PATENroFFice g oHBIsriAN n SCHNEIDER; orimvn'ivron'r, roWA.

1' sKAsH-WEIGH'r'sUrPonT.

-Application le'd June 15, 1925. Y Serial No'. 37,066. Y

sashes andthe windowlcasings will result in more or less resistancetothe raising and lowering of the sashes.-k In construct-ions vwhereeach sash is `connected to individual" weights at each side thereof aswell as in l5 constructions where theV two sashes of the window areconnectedtogether by a connector, such as a rope or chain, passingoverfa pair of casing pulleys and through a pulley of arcommon weight,itis usually found that there is not an equalization of the` weights 'ofthe parts, such as the sashes and the window weights. These have adisadvantage of requiring that the window weights Vbe variable,or, thatsome other means be used to I counterbalance or equalizethe differencevin the weights of the objects or counteract their unbalanced effect,and` particularly so in the case where the two sashes are'tonnectedtogether by a common connector ,passing through a common weight. ,l

The present invention is designed yand adapted to avoid thesedisadvantages and has among its objects, teracting devices forycounteracting or equalizing the differences of weights between alwindow sash and a window weight,for'bey tween two window sashes havingva common window weight; to provide means for Vapplying connected to theheaviervobject, whether it bea sash, a window weight, or similarobjects; to provide for bending or kinking the connector kfor imposingsuoli kresistance thereto; to provide for varying or ad]usting theamount of 'bending or kinking of the.

connector, and hence, the resistance to the overweight of the heavierobjectgto provide Y groovedfor the running thereover of the for,preferably', bending the connector between a sheave lor pulley,` overwhich the connector runs, and an idler carried near the sheave orpulley; to providel for a mov-vable member, such as a sliding yoke,prefer-v ably carrying a bending roller, and an operating element, suchas a rotating screw for eifectin'g lthe slidingy of thel yoke when thescrew' rotated; to provide for meansfsueh the provision ofcounresista-nce to the connector portionas a stop member, preferably'inthe" form of a cross-pin for limiting thev movement of the yokein onedirection, whereby the screw and the yoke will not become disconnectedfrom each other; the yokey preferably hav ing a shoulder for yengagementwith the pin; to provide for mounting the screw, which preferably has ahead', for rotary action, and means for holding the'screw againstlongitudinal. action and ypreventing it from working. loose or Ybecoming disconnected vfrom the device,preferably' by apart' of a the"vscrew-head and to providefor such other objects,

advantages and capabilities as will later appear and are inherently pos'sessed by. the invention. y

` Referring to the drawingsillu'strating one form of theinvention,AV

' Figure l isa view in vperspective of a'rde- ,Y "vice constructed in.accordance with the 'in' vention. Y. f

Figure 2 is yalongitudinal sectional view through such device.

Figure 3 is atransv'erse sectional Yview devicefoverlapping the edge orYborder 'of taken on fa pla-ne represented by line-ivi'n' Figure 2 ofthe drawings and y Figure f1 isl a fragmentary sectional view takenvona'plane representedby line i4-4 fof Figure 3.* v

v Referring now ings, anembodimentselected to illustrate the inventionis shown ascomprising 'a sup porting member 1 in the form ofacasing orshell'capable of i c asingor 'frame 2 by a suitable securingelement,"isuch as` sc'rews'B passing through a faceilangel forming,preferably, an inT tegral partof the supporting member f.' Within theshell'lis rotatably mounted av more in detail to` the drawbeing securedto alwindowr .sheave or pulley 5 suitably'grooved for the passagethereover of a flexible connector 6, 'such'asfa'ropm chain or the like.-i

1 The sidewalls of the shell vhave depending-*portions 8 between whichextends and Ato'whichy isv secured a shaftor pin 9 forrotatably/supporting an idler roller 10 suitably 'connector 6; Betweenthe pulley 5. and the l roller 10 is slidably supported. a yoke 11 vintracks or channels 12 formed in the sidev the runningthereover of theeiiiiectertr At the othergendfof the yoke is provided Vla crossfhead '15.apertured and threaded to receive the threaded part of a screw ,lhavingits unthreaded shankportion rotatably mounted in a bearing portion 17integrally provided between the side wallsoi the shell 1 and at thefront thereof and beneath the pulley 5. The screw preferably hasasubstantially cylindrical head 18 capable of free rotation in a recessprovideqzl in the bearingfportion 17 andvat the irontof the shell 1. TheA cross :head also has alprojecting .portion ,19j to Aprovide a shoulder.20;capable of :engaging with a erosie pin v21 `extend- 4fing betweenand Secured -tO-thefsde walls vOf the, shell .l and at a place topreventftheftotel :disengagement oftheroes head 1,5 from .the -end ofthe Vscrew 16 when the yokehas been moved bythisscrew towardthe rear-ofthe fdeviee. Y t

gOver .the frontier .faceportion of the de- :vice is :preferably secureda ieee l:plate 22 Iby means offpins .L23 driven into-,the vflange-`portQIl 4: aS clear-ly shown in Alligure 2 of the drawings TheplatefaQ 4preferablv,has

suitable counter-,sunk iopenings for the re- :ception A,ot v, thegheads.of thev screws f3. `It', also has an elongated opening 24 out of which.the ilpulley 5 andthrough which the rope 6 may pass to a fweight (notshown). Italso is provided with an aperture or opening26oppositethesorew:head118, through which opening the end of a screwdrivermay :pass for engagement with the YVslot of ft-hescrew head ,-18 forrotating the screw whenit fis desired to adjust or vary the Yyoke )11and' the roller :14. 'Ihezaperture26` is preferably smaller (than `thediameter of the head `18 so as to provide an overlappingportionrover.theedge `oribor-derol `thefhead 158 :soas to prevent the longitudi-nalmovement of the ,screw/,When the sameisrotated,:and'falsothe -avorkingloose or falling apart .of theserew from-,the device.

The lrope :16, or similar connector', :passes 4over ,the :pulley 14andbehind the rollerlOlwithvitSendiporltion i27'eitending and connectedton weight for `a -jpulley carried Ibya :weight invia A'case lwhereitalie rope lContinues upwardly to 1a- --second supporting deviceandf-to asecond eXteIldsand is connected to :a :wi-ndowsash.

iIn operation the rope Aportion .extending tofthefsash'passes Aover'te-main pulley 5 vulley A:10, f the rope and 14, so as to Limpose-:moreor vless ,resist lance to the lpull for .tension yon fthe rope .sogasto-'counteractthe :diierence of weights of Athe :sash yand the1window '.weightfand thus :avoiding tundesiried motion therebetween 'Theamount ,cof kbend made in :the rope lm ember, @said yoke gbeing :5and-'infront o'iztfhefroller varied by a sliding or longitudinalv-movenient of the yoke eected byfavrotation of the screw 16. It will beclear that when the screw is operated in one direction the yoke will beted lor moved' outwardly and when V.rotated in an opposite direction itwill be fed inwardly or towards the front so as ltowinerease ltlle bendor kink in the rope. This bends or crowds the rope portion between-'therollers so thatfit willqbe more dilieult ,-or the rope -to Passoverthe'fmain pulley 5, that is, it *will take greater .elifort for the#Weight :to fpull -011` therrope :portion u12,7 and will have Iless liftingzeiect' on ithe sash eonnectedito the .rope portion'p28.

In order -that j-theyoke may ,-notzb'effedfito theprearztoo far sothexend of the :screw lwould become detached Y from @the GI'QSSthead,the 'shoulder .20 will `Contact `4,with fthe fstop iorzlimiting pin 2lto prevent this NVhile ,I have herein described andnpon the drawingsshown an eillustratvelembodilinert of theinventionlit is to be:understood Y`that the invention `comprehends other con- Y claim =1. lnsash weight Supports,;in combinastion, `an vidler pulley; mounted on,a-fyoke,..said yoke bengslidablyf adjustable between gxed limits, aplurality I off-pulleys rotatable by :a

-legrible means having. aw bend, said bend AIberingvva-riabletby saidL:adjustable pulley.

-g 2. In sash L,weightsupports; 'in combination, la threaded yokeslidable, on a supporting adjustable and operable by a:,nonetran-slatable threaded member, an idler-pulley mounted in said,yoke andfengaging :ailexiblc connector, other pulleys engaging said;lekible connector, vwhereby abend is imade 1n -saidconnector to createafdnag between .said pulleys and sash i. weights. Y

3. A sashsupport having a'fshell forzatltachment toa window casing, rLasheaverotat- .ably ,carried by the shell l.-andf over wh'ieh passes-ailexiblei connector -tofthe sash and-to' a weight, @a roller overIwhich passesthe eonne'ctorfrom the weightfto the sheave, a secondiroller lflocated 'on fthe opposite'fsiderof ktheconneetorfztroln, thesheave 4and first -mentioned'roller, an adjustable 'carrier :for thesecond yroller .f'for :causing the ccmneetor to Vbe more orlesstortuousand constrainedlbe- 1.twen the rollers, a`-tool operated elementcon--lnectedto the carrier-and' operable to adjust fthe position of thecarrier and seeondrollerI relative to the kfirst roller,` and means`guarding against .the disassembling yof the elements. y I f 4; In sashweight supports, in combinartion, an enclosed bracket, .aplurality ofpul-` leys therein engaging `a flexible `connector,

running from a sash to a Weight, means for bending lthe connector to oerresistance to the difference in Weights of the sash and 10 WindowWeight, said means including'a sliding yoke and a pulley for engagingthe con y nector to bend it Inore or less, 'a screw threaded to the yokeand rotatable to slideV the yoke to and fro, and a stopy element forlimiting'the sliding of the yoke to prevent the disconnection of thescrew and yoke.

my name to this specification.

CHRISTIAN L. SCHNEIDER.

In Witness whereof, I hereunto subscribe

